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If you’re a long-haul trucker or an RV enthusiast, you know the dilemma. It’s a 95°F day, your HOS (Hours of Service) are up, and you need to sleep. Your options? Burn fuel (and money) idling the engine all night, or try to sleep in a sweltering hot cab. There is a third option, and it's changing the game: the parking air conditioner. Fig 1. Parking Air Conditioner Block Diagram This guide explains exactly what a no-idle AC is, how it works, and why it’s becoming a "

In a market flooded with resellers and trading companies, sourcing a reliable parking air conditioner or diesel heater is a major challenge for distributors. You need a partner, not just a seller. You need a true manufacturer. Since 2013, Yierfu has focused on one thing: manufacturing high-value parking ACs and heaters. We aren't a middleman. We are the source. With 50+ patents and products proven in over 20 countries, our factory is our promise to you. 1.Your Factory-Direct

1.Parking Air Conditioner vs. Stock Car AC: A Complete Comparison It’s the #1 question new truck drivers and RVers ask: "I already have an AC in my dash. Why would I need a second  one?" It's a fair question, but it stems from a common misunderstanding. Using your vehicle's stock (in-dash) AC to cool your bunk while you sleep is like using a sledgehammer to tap in a small nail. It’s the wrong tool for the job, and it’s incredibly expensive. This guide breaks down the critical